--- a/hgext/obsolete.py	Tue Aug 07 15:02:54 2012 +0200
+++ b/hgext/obsolete.py	Tue Aug 07 15:04:03 2012 +0200
@@ -45,11 +45,6 @@
 
 import json
 
-import struct
-
-_pack = struct.pack
-_unpack = struct.unpack
-
 from mercurial import util
 
 try: